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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/dvb/bt8xx.txt |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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-rw-r--r-- | Documentation/dvb/bt8xx.txt | 90 |
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diff --git a/Documentation/dvb/bt8xx.txt b/Documentation/dvb/bt8xx.txt new file mode 100644 index 000000000000..e3cacf4f2345 --- /dev/null +++ b/Documentation/dvb/bt8xx.txt | |||
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1 | How to get the Nebula, PCTV and Twinhan DST cards working | ||
2 | ========================================================= | ||
3 | |||
4 | This class of cards has a bt878a as the PCI interface, and | ||
5 | require the bttv driver. | ||
6 | |||
7 | Please pay close attention to the warning about the bttv module | ||
8 | options below for the DST card. | ||
9 | |||
10 | 1) General informations | ||
11 | ======================= | ||
12 | |||
13 | These drivers require the bttv driver to provide the means to access | ||
14 | the i2c bus and the gpio pins of the bt8xx chipset. | ||
15 | |||
16 | Because of this, you need to enable | ||
17 | "Device drivers" => "Multimedia devices" | ||
18 | => "Video For Linux" => "BT848 Video For Linux" | ||
19 | |||
20 | 2) Loading Modules | ||
21 | ================== | ||
22 | |||
23 | In general you need to load the bttv driver, which will handle the gpio and | ||
24 | i2c communication for us. Next you need the common dvb-bt8xx device driver | ||
25 | and one frontend driver. | ||
26 | |||
27 | The bttv driver will HANG YOUR SYSTEM IF YOU DO NOT SPECIFY THE CORRECT | ||
28 | CARD ID! | ||
29 | |||
30 | (If you don't get your card running and you suspect that the card id you're | ||
31 | using is wrong, have a look at "bttv-cards.c" for a list of possible card | ||
32 | ids.) | ||
33 | |||
34 | Pay attention to failures when you load the frontend drivers | ||
35 | (e.g. dmesg, /var/log/messages). | ||
36 | |||
37 | 3a) Nebula / Pinnacle PCTV | ||
38 | -------------------------- | ||
39 | |||
40 | $ modprobe bttv i2c_hw=1 card=0x68 | ||
41 | $ modprobe dvb-bt8xx | ||
42 | |||
43 | For Nebula cards use the "nxt6000" frontend driver: | ||
44 | $ modprobe nxt6000 | ||
45 | |||
46 | For Pinnacle PCTV cards use the "cx24110" frontend driver: | ||
47 | $ modprobe cx24110 | ||
48 | |||
49 | 3b) TwinHan | ||
50 | ----------- | ||
51 | |||
52 | $ modprobe bttv i2c_hw=1 card=0x71 | ||
53 | $ modprobe dvb-bt8xx | ||
54 | $ modprobe dst | ||
55 | |||
56 | The value 0x71 will override the PCI type detection for dvb-bt8xx, which | ||
57 | is necessary for TwinHan cards.# | ||
58 | |||
59 | If you're having an older card (blue color circuit) and card=0x71 locks your | ||
60 | machine, try using 0x68, too. If that does not work, ask on the DVB mailing list. | ||
61 | |||
62 | The DST module takes a couple of useful parameters, in case the | ||
63 | dst drivers fails to detect your type of card correctly. | ||
64 | |||
65 | dst_type takes values 0 (satellite), 1 (terrestial TV), 2 (cable). | ||
66 | |||
67 | dst_type_flags takes bit combined values: | ||
68 | 1 = new tuner type packets. You can use this if your card is detected | ||
69 | and you have debug and you continually see the tuner packets not | ||
70 | working (make sure not a basic problem like dish alignment etc.) | ||
71 | |||
72 | 2 = TS 204. If your card tunes OK, but the picture is terrible, seemingly | ||
73 | breaking up in one half continually, and crc fails a lot, then | ||
74 | this is worth a try (or trying to turn off) | ||
75 | |||
76 | 4 = has symdiv. Some cards, mostly without new tuner packets, require | ||
77 | a symbol division algorithm. Doesn't apply to terrestial TV. | ||
78 | |||
79 | You can also specify a value to have the autodetected values turned off | ||
80 | (e.g. 0). The autodected values are determined bythe cards 'response | ||
81 | string' which you can see in your logs e.g. | ||
82 | |||
83 | dst_check_ci: recognize DST-MOT | ||
84 | |||
85 | or | ||
86 | |||
87 | dst_check_ci: unable to recognize DSTXCI or STXCI | ||
88 | |||
89 | -- | ||
90 | Authors: Richard Walker, Jamie Honan, Michael Hunold | ||